Shoe.



O. STERN.

SHOE.

APPLICATION FILED MAR. 21

Patented NOV. 28, 1911.

y p i W Qui t-meme a OSCAR STERN, OF NEW YORK, N.

, SHOE.

Specification of Letters Patent. Pat nted Nov. 28, 1911.

Application filed March 21, 1911. Serial No; 615,945.

To cit whom it may concern:

Be it known that I, OSCAR STERN, a subject of e the German Emperor,residing at New York, in the county of New York and State of New York,have invented certain new and useful Improvements in Shoes, of which thefollowing is a specification.

The object 'of my invention is to provide a shoe or like foot wear withventilation means, so that there may be a continuous supply of fresh airin the foot wear while in use.

To accomplish this, my invention consists in the construction,arrangement and combination of parts as hereinafter specified.

.In the accompanying rdrawlng, similar reference numerals denotecorrespondingparts and Figure 1 is a vertical section through a shoeequipped with my ventilation means; Fig.2 is an inner plan view of theheel portion of my device; Fig. 3 an inner plan view of the sole and toeportions thereof; Fig. 4 is a cross section on line 44 of Fig. 2; Fig. 5is a cross section on line 55 of Fig. 1; Fig. 6 is a cross section online 6-6 of Fig. 2; Fig. 7 is a cross section on line 77 of Fig. 3 andFig. 8 is, a longitudinal'se'ction on line 88 of Fig. 3.

p In the drawing, which forms a part of this invention, 1 denotes ashoe, 2 the'sole and 3 the heel thereof. A pad 4 of rubber, cork or thelike is glued or otherwise fastened to the inner surface of the sole, tocover the latter to about the front end of the arch 5' of the sole. Thelateral and front edges of the pad are shaped in conformity with thosebf the sole and on its upper face is formed iwith a great number ofhollow spherical projections 6. I form the spherical projections withapertures 7 to render them more elastic. Transversely the pad maybesomewhat curved (see Fig. 7) in conformity with the inner surface of thesole of the shoe.

Extending from and somewhat overlapping the inner end of the pad is amember 8, which is adapted to bear on the inner surface of the archportion 5 of the shoe, and

the circumference of which is shaped in conformity therewith. Thismember, which I prefer to make of metal, is longitudinally corrugated toform passages or flues 9 and at the rear end formed with an even tailportion 11, the tines being slitted at this tail portion as at 12.Theportions forming the fines are (perforated as at 10. The tail portionis a apted to bear on the forward end of the inner surface of the heel3. A pad 13 shaped in conformity with the inner surface of the heel andalso somewhat curved transversely (Fig. 4) is adapted to bear on theinner surface of the heel overlapping the ,rear or tail end of the archmember 8 (Figs.

1 and 2). This pad, as the sole or toe pad, is preferably formed ofrubber, but cork or other suitable material may be used for it, and isformed on its upper face with similar hollow projections 14 formed withapertures 14 as the former. Said projections may, however, be somewhathigher than'those of the sole pad 4. This pad is likewise glued orotherwise suitably fastenedto the inner surface of the heel.

Extending over the pad 13, arch member 8 and pad4 is the insole 15, ofleather orother suitable material, and which is perforated on its entiresurface as at 16 (Fig. 1). The heel 3 is provided with a chamber 17opening at the top and communicating with the flues 9 through theslitted ends 12 of'the latter. In the front-surface of the heel anopening 18 is provided which communicates with the chamber 17 of theheel and in which a suitable valve 19 is arranged permitting the closureof said opening 18. In the example shown, a slide block or plate is usedas a valve, which is guided in suitable guides-20.

The operation of this device is as'follows: When the valve 19controlling the opening 18 is open the air contained in the shoe will beexpelled as the wearer in Walking compresses the elastic projections ofthe pads 4 and 13. The air will pass through the fines 9 into thechamber 17 and thence through the opening 18 into the atmosphere. On theother hand, as the wearer in walking lifts the toe portion or heelportion of his foot, the rai'efication of the air caused by the previous expulsion, will now produce a suction action, fresh air beingdrawn into the shoe through the opening 18 into the chamber 17 andthence through the flues 9 and perforations 10 thereof into the spacesbetween the pads 4, 13 and arch portion 8 and the insole 15. Through theperforations 16 of the latter, the fresh air will be permitted to enterinto the upper portion of the shoe and cool the foot.

It is, of course, understood that various modifications made he madewithout deviating from the Spirit. of my invention.

, What I claim and desire to secure by Letters Patent is: V

In a shoe or boot, a flexible pad having hollow-spherical projectionsand fixed to the inner surfaces of the sole, a corrugated perforatedmember over the arch portion of the shoe, the corrugations of which formflues, a heel formed with an open topped chamber having an openingleading into the atmosphere, a flexible pad having hollow sphericalprojections covering the said chamber, a perforated insole extendingover 5 the said 'flexible pads and the arch member and resting on thesaid spherical projections, and a. slide valve leading into the saidchamber.

In testimon whereof I afiix my signature 20 in presence 0 two witnesses.

U OSCAR STERN. Witnesses:

.J OHN T., GARMODY, MAX D. ORDMANN.

